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https://issues.apache.org/jira/browse/NIFI-4092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16301903#comment-16301903
]
Joseph Witt commented on NIFI-4092:
-----------------------------------
Talked with Gilman. He says "we have seen this before. It’s always been
environmental. Look for differ versions of jaxb on the class path. This could
be from different versions of java on different nodes or a modified lib dir
where someone added a jaxb jar."
> ClassCastException Warning during cluster sync
> ----------------------------------------------
>
> Key: NIFI-4092
> URL: https://issues.apache.org/jira/browse/NIFI-4092
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.3.0
> Reporter: Joseph Gresock
>
> This is the strack trace I receive, though I'm not sure it affects anything,
> since the cluster is eventually able to connect.
> 2017-06-20 13:46:44,680 WARN [Reconnect ip-172-31-55-36.ec2.internal:8443]
> o.a.n.c.c.node.NodeClusterCoordinator Problem encountered issuing
> reconnection request to node ip-172-31-55-36.ec2.internal:8443
> java.io.IOException:
> org.apache.nifi.controller.serialization.FlowSerializationException:
> java.lang.ClassCastException:
> org.apache.nifi.web.api.dto.TemplateDTO$JaxbAccessorM_getDescription_setDescription_java_lang_String
> cannot be cast to com.sun.xml.internal.bind.v2.runtime.reflect.Accessor
> at
> org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.save(StandardXMLFlowConfigurationDAO.java:143)
> at
> org.apache.nifi.controller.StandardFlowService.createDataFlowFromController(StandardFlowService.java:607)
> at
> org.apache.nifi.controller.StandardFlowService.createDataFlowFromController(StandardFlowService.java:100)
> at
> org.apache.nifi.cluster.coordination.node.NodeClusterCoordinator$2.run(NodeClusterCoordinator.java:706)
> at java.lang.Thread.run(Thread.java:748)
> Caused by:
> org.apache.nifi.controller.serialization.FlowSerializationException:
> java.lang.ClassCastException:
> org.apache.nifi.web.api.dto.TemplateDTO$JaxbAccessorM_getDescription_setDescription_java_lang_String
> cannot be cast to com.sun.xml.internal.bind.v2.runtime.reflect.Accessor
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.addTemplate(StandardFlowSerializer.java:546)
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.addProcessGroup(StandardFlowSerializer.java:203)
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.addProcessGroup(StandardFlowSerializer.java:187)
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.addProcessGroup(StandardFlowSerializer.java:187)
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.serialize(StandardFlowSerializer.java:97)
> at
> org.apache.nifi.controller.FlowController.serialize(FlowController.java:1544)
> at
> org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.save(StandardXMLFlowConfigurationDAO.java:141)
> ... 4 common frames omitted
> Caused by: java.lang.ClassCastException:
> org.apache.nifi.web.api.dto.TemplateDTO$JaxbAccessorM_getDescription_setDescription_java_lang_String
> cannot be cast to com.sun.xml.internal.bind.v2.runtime.reflect.Accessor
> at
> com.sun.xml.internal.bind.v2.runtime.reflect.opt.OptimizedAccessorFactory.instanciate(OptimizedAccessorFactory.java:190)
> at
> com.sun.xml.internal.bind.v2.runtime.reflect.opt.OptimizedAccessorFactory.get(OptimizedAccessorFactory.java:129)
> at
> com.sun.xml.internal.bind.v2.runtime.reflect.Accessor$GetterSetterReflection.optimize(Accessor.java:388)
> at
> com.sun.xml.internal.bind.v2.runtime.property.SingleElementLeafProperty.<init>(SingleElementLeafProperty.java:77)
> at sun.reflect.GeneratedConstructorAccessor435.newInstance(Unknown
> Source)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at
> com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:113)
> at
> com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.<init>(ClassBeanInfoImpl.java:166)
> at
> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:488)
> at
> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:305)
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